Backport of Fix formatting for webhook-certs Consul tutorial into release/1.16.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #17810 to be assessed for backporting due to the inclusion of the label backport/1.16.

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The person who merged in the original PR is:
@david-yu
This person should manually cherry-pick the original PR into a new backport PR,
and close this one when the manual backport PR is merged in.

merge conflict error: POST https://api.github.com/repos/hashicorp/consul/merges: 409 Merge conflict []

The below text is copied from the body of the original PR.

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Description

Update formatting for webhook certs tutorial to fix the broken formatting that's currently present on the tutorial site.

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Overview of commits

• 3944380 - ddcee84 - d65060e - fb600b4

[hashicorp-cla]

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2 out of 3 committers have signed the CLA.

• david-yu
• stevenzamborsky
• temp

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[github-team-consul-core-pr-approver]

Auto approved Consul Bot automated PR